10. Interim Conclusion

Examples 01 through 28 have presented, one by one, all the concepts required by the case study:

Concepts	Examples	In the case study
blueprints, actions, routing, responses, redirects	01 through 05	folder [controllers]
[create_app] factory, shared services ([app.extensions], [current_app])	02, 06	[rdvmedecins/__init__.py], [web/services.py]
Action model, linkage, validation	07 through 12	[forms/], [web/validation.py]
views [Jinja2], template, fragments, macros, common view variables	13 to 16	folder [templates], [web/common_model.py]
[WTForms] forms, validation, redisplay	17 to 19	[forms/forms.py], [templates/fragments/person_fields.html]
Post / Redirect / Get, flash messages	20	[web/flash.py], [templates/fragments/flash.html]
links and buttons, CSRF protection, confirmation window	21	[templates/fragments/confirmation.html], [static/js/app.js]
Internationalization	22	[i18n/*.json], [web/translator.py], [controllers/language.py]
Data Scopes	23	[web/application_model.py] (application), [g] (request), cookies (client)
hooks, error handlers, error pages	24	[auth/security.py], [web/errors.py], [templates/error.html]
authentication JWT, roles, CAPTCHA, rate limiting	25–27	folder [auth], [controllers/auth.py]
Web / Business / DAO, [SQLAlchemy], Transactions	28	files [entities], [repositories], [business]

The case study brings them together into a complete, realistic-sized application (80 files, approximately 5,300 lines, including comments). It was written with the same care as the examples: each file begins with a comment explaining its role, and tricky sections are annotated in the code. Each main folder also contains a file named [README.md] that lists its files. The document’s comments highlight what the examples did not show and refer to the examples for the rest.